Signal reception device, signal transmission device, radio...

Details Signal reception device, signal transmission device, radio... Signal reception device, signal transmission device, radio...

2005-04-22

2008-08-26

Phu, Sanh D (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Carrier and single sideband

C455S205000, C455S260000, C455S196100, C455S306000, C375S346000, C375S367000

Reexamination Certificate

active

07418248

ABSTRACT:
A signal reception device is disclosed that is able to improve interference cancellation capabilities even when signals having different center frequencies exist on the same frequency band. The signal reception device includes an interference suppression unit to generate replicas of plural signals in the received signal and separate the signals by suppressing interference signals. The interference suppression unit includes a signal phase rotator to rotate phases of the signal candidates at preset respective rotational frequencies, the preset rotational frequencies being related to respective center frequencies of the signals in the received signal; a rotational frequency controller to set the preset rotational frequencies; and a replica generator to generate the replicas of the signals by using the phase-rotated signal candidates.

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